GPM 3GPROF: Global Daily Satellite Precipitation Estimates for Climate Studies

Global gridded daily precipitation averages derived from microwave satellite sensors. The data is produced by NASA's Global Precipitation Measurement mission using the GPROF algorithm with climate-consistent ancillary data from ECMWF-Interim reanalysis. Version 07 is the current version, last updated on 2026-03-13.

Use Cases

• Conducting climate trend analysis based on global, climate-referenced precipitation retrievals.
• Validating and calibrating climate models using homogeneous satellite-derived precipitation data.
• Studying atmospheric hydrometeor distribution based on microwave sensor sensitivity to liquid and ice-phase precipitation.

Strengths

• Data is a 'Climate-Reference' product designed for homogeneous analysis over time series.
• Retrievals are based on high-quality microwave sensors sensitive to detailed precipitation hydrometeors.
• Uses ECMWF-Interim reanalysis for consistent ancillary atmospheric and surface data.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and spatial resolution specifics beyond '0.25 degree' are unknown, which may limit suitability assessment.
• ECMWF ancillary data has a 2-3 month lag behind regular production, which may affect timeliness for near-real-time studies.

Provenance

Source

National Aeronautics and Space Administration (NASA) via the GES DISC.

Collection Method

Derived from retrievals by the GPROF algorithm applied to SSMI sensor data on the F13 satellite.

Time Range

Global daily averages; specific temporal coverage is not provided in the input.

Freshness

Last updated 2026-03-13 02:16:28.131473; freshness should be verified.

Geography

Global coverage at a 0.25 degree x 0.25 degree grid resolution.